I was looking for a easyer and less expensive way to make my shower base, after looking for a wild on internet, I find Dix Systems, who sale a product made in USA call pre pitch and quick pitch. It cost me with the shipping less then 100$, I will be able to make my base so more easely and for less money. All big hardware store in Canada should sell those kit.
And with that system your drain does not have to be in the center if you all ready have a drain somewhere and you do not want to have to move it, this is perfect. One more think the customer service is easy to get somebody on the phone, no computer voice.